21028050

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{83}}^1\times {\mathrm{563}}^1$

素因数の和:664

約数の個数: 72

約数和(自身を含む): 57277584

約数和(自身を除く): 36249534

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 83, 90, 150, 166, 225, 249, 415, 450, 498, 563, 747, 830, 1126, 1245, 1494, 1689, 2075, 2490, 2815, 3378, 3735, 4150, 5067, 5630, 6225, 7470, 8445, 10134, 12450, 14075, 16890, 18675, 25335, 28150, 37350, 42225, 46729, 50670, 84450, 93458, 126675, 140187, 233645, 253350, 280374, 420561, 467290, 700935, 841122, 1168225, 1401870, 2102805, 2336450, 3504675, 4205610, 7009350, 10514025, 21028050]

約数ペア:

[(1, 21028050), (2, 10514025), (3, 7009350), (5, 4205610), (6, 3504675), (9, 2336450), (10, 2102805), (15, 1401870), (18, 1168225), (25, 841122), (30, 700935), (45, 467290), (50, 420561), (75, 280374), (83, 253350), (90, 233645), (150, 140187), (166, 126675), (225, 93458), (249, 84450), (415, 50670), (450, 46729), (498, 42225), (563, 37350), (747, 28150), (830, 25335), (1126, 18675), (1245, 16890), (1494, 14075), (1689, 12450), (2075, 10134), (2490, 8445), (2815, 7470), (3378, 6225), (3735, 5630), (4150, 5067)]